Home / 744,870.26-1,117,371.28-212,379.86

Finding the Fourth Proportional to 744,870.26, 1,117,371.28 and 212,379.86

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Solution

The fourth proportional to 744,870.26, 1,117,371.28 and 212,379.86 is: 318,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,870.26 : 1,117,371.28 = 212,379.86 : x
  2. Step 2: Convert to fraction form
    744,870.26/1,117,371.28 = 212,379.86/x
  3. Step 3: Cross multiply
    744,870.26x = 1,117,371.28 × 212,379.86
  4. Step 4: Simplify right side
    744,870.26x = 237,307,156,014.42
  5. Step 5: Solve for x
    x = 237,307,156,014.42/744,870.26
  6. Step 6: Final answer
    x = 318,588.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.